nix: increase cpu count

This improves performance, especially when kvm is inaccessible.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>

fipc/ipc.go

@@ -0,0 +1,4 @@
+// Package fipc exports types useful for talking to fortify.
+package fipc
+
+// TODO

test.nix

@@ -77,8 +77,13 @@ nixosTest {
 
       programs.sway.enable = true;
 
+      virtualisation.qemu.options = [
         # Need to switch to a different GPU driver than the default one (-vga std) so that Sway can launch:
-      virtualisation.qemu.options = [ "-vga none -device virtio-gpu-pci" ];
+        "-vga none -device virtio-gpu-pci"
+
+        # Increase Go test compiler performance:
+        "-smp 8"
+      ];
 
       environment.fortify = {
         enable = true;